FIFTH ANNUAL YEAR BOOK — PART II. 147 



Prevailing direction of the wind, southwest; highest velocity reported, 42 

 miles per hour, from the northwest, at Sioux City, on the 3d. Average 

 number of clear days, 16; partly cloudy, 9; cloudy, 6. 



August. — The monthly mean temperature lor the State, as shown by the 

 records of 115 stations, was 69.1% which is 2.7° below normal. By sections 

 the mean temperatures were as follows: Northern section, 67 3% which is 

 3.2°, below normal; central section, 69.2°, which is 2.4° below normal; 

 southern section, 70.7"^, which is 2.9° below normal. The highest monthly 

 mean was 73 3 at College Springs; lowest monthly mean, 6.5.0° at New 

 Hampton and Sibley. The highest temperature reported was 97° , at Mt. 

 Ayr and Waukee, on the 13th; lowest temperature reported 35°, at Earlham, 

 on the 8th. The average monthly maximum was 91.4'; average monthly 

 minimum, 44.0°. Greatest daily range, 45° at Rock Rapids; average of 

 greatest daily ranges, 35.1° Average precipitation for the State, as shown 

 by records of 126 stations, was 3.43 inches, which just equals the normal. 

 The averages by sections were as follows: Northern section, 2 89 inches, 

 which is .16 of an inch below normal; central section, 3.24 inches, which is 

 .29 of an inch below normal; southern section, 4.15 inches, which is .45 of 

 an inch above normal. The largest amount reported was 6.75 inches at 

 Fort Dodge; least amount reported, .66 of an inch, at Sibley. The greatest 

 daily rainfall'ieported was 4.00 inches at Fort Dodge on the 29tb. Average 

 number of days on which .01 of an inch or more was reported, 7. Prevail- 

 ing direction of wind, southwest; highest velocity reported, 42 miles per 

 hour, from the south, at Sioux City, on the 3d. Average number of clear 

 days, 17; partly cloudy, 8; cloudy, 6. 



September. — The monthly mean temperature for the State, as shown 

 by the records of 114 stations, was 64 0°, which is .4° above normal. By 

 sections the mean temperatures were as follows: Northern section, 61.8°, 

 which is .5° below normal; central section, 64.3°, which is 1.1° above 

 normal; southern section, 65.6°, which is .2° above normal. The 

 highest monthly mean was 68 6°, at Belknap; lowest monthly mean, 59.0°, 

 at Sibley. The highest temperature reported was 94', at Wilton Junction, 

 on the 11th; lowest temperature reported, 30°, at Atlantic, Earlham, Han- 

 lontown and Rock Rapids, on the 14th, 15th and 21st. The average monthly 

 maximum was 88.9°, average monthly minimum, 34.7°. Greatest daily 

 range, 54°, at Estherville; average of greatest daily range, 36.5°. Average 

 precipitation for the State, as shown by the records of 122 stations, was 2.78 

 inches, which is .52 of an inch below normal. The averages by sections 

 were as follows: Northern section, 2.67 inches, which is .74 of an inch 

 below normal; central section, 2.13 inches, which is 1.13 inches below 

 -normal; southern section, 3.53 inches, which is .28 of an inch above normal. 

 The largest amount reported was 8. 33 inches, at Keokuk; least amount 

 reported, .09 of an inch at Ida Grove. The greatest daily rainfall reported 

 was 3.1 inches, at Keokuk, on the 18th and 19th. Average number of days 

 on which .01 of an inch or more was reported, 7. Prevailing direction of 

 the wind, south and southwest; highest velocity reported, 39 miles per hour 

 from the northwest, at Sioux City, on the 1st. Average number of clear 

 days, 13; partly cloudy, 8; cloudy, 9. 



October.— The monthly mean temperature for the State as shown by 

 records of 111 stations, was 53.1°, which is 1.0' above normal. By 



